Explore / North America / Montana
Montana
Chief Mountain / Yogo Gulch Sapphire (MT)
Gem locality Documented siteProhibited, look only
What you could find
Reported finds from this ground.
Crystals and mineralsAlso reported: Yogo sapphire (cornflower blue).
Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).
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Why this spot
Cretaceous
Famous cornflower-blue Yogo sapphires; not open to the public.
Keep exploring nearby
More spots in this area.